The graph below illustrates, how serious was issues for people from four different countries were considered environmental chalenges from 2000 to 2010. Issues are was: shortages of fresh water, air pollution, climate change and automobile emissions. For countries as well as China, India, Germany, USA.
The most challengable problem; was air pollution which still was over 60 percent. Shortages and fresh water problem made from 2003, while other problems were from 2000 to 2010. All four problems in 2010 falled.
Shortage of fresh water begun from 2003 and was about 70 percent serious it was the major serious problem for 2 years. Climate change was the most unserious issue before 2005. In the middle of 2004 year 2 global promlems; Shortage of fresh water and air pollution were at the same level of seriousness.
Automobile emissions on the start was about 60 percent however, by the way at the end decreased to 50 percent, while other issues was increasing or fluctuated. Air pollution was the most unstable issue compared with other problems it fluctuated for 4 years, instead of like climate change which fluctuated for only 1 year.
